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NTE867

Integrated Circuit BiMOS Input Op−Amp

NTE Electronics 

NTE867

Integrated Circuit

BiMOS Input Op−Amp

Description:

The NTE867 is a linear inetgrated circuit that has three major sections for interfacing television tuning

systems: an input op−amp, a band−select switch, and an internally referenced quad−comparator. The

op−amp output voltage has a wide dynamic range with a 3mA source or sink capability and can be

clamped to three discrete levels in response to logic inputs. The op−amp also has internal bias refer-

ence and phase compensation. High impedance PMOS input transistors are protected by input limit-

ing diode clippers.

The band−select switch has two logic inputs controlling four outputs: VHF B+, VHF HIGH, SUPER-

BAND CATV, and UHF B+. The VHF B+ and UHF B+ outputs are current sources which are short−cir-

cuit protected by current limiting. VHF HIGH and SUPERBAND CATV outputs are current sinks with

low off−state leakage. The quad comparator features internal reference bias, low output leakage, and

a 6mA current sinking capability. The outputs of two of the comparators are internally connected to

form a window comparator.

Features:

D Input op−amp: high impedance PMOS input transistors and internal reference bias

D Low input bias current and internal diode protection at op−amp inputs

D High op−amp output voltage swing (0.7−28.0V) with 3mA source sink capability

D Three op−amp output voltage logic−controlled clamp levels

D Logic−controlled bandswitching with four seperate outputs

D Two bandswitch output current sinks

D Two bandswitch current−limited output current sources

D Internally referenced quad comparator

D Low drive current input requirement

D Low output leakage

D High output current sink capability

D Bipolar and PMOS processes on a single chip

Absolute Maximum Ratings: (TA = +25°C, unless otherwise specified)

Supply Current, ISS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA

Supply Voltage (Pin 8), VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18V

Supply Voltage (Pin 12), VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±8V

Device Dissipation Perk Package, PD

Up to 55°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 750mW

Above 55°C (Derate Linearly) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.9mW/°C

Operating Ambient Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C

Storage Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55° to +150°C

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